QEW 1 / 2 / 3 Job Safety Plan

Time / Date: 5/15/2023 17:07:48

JSP ID: 1040

Scope of Work: LOTO VENUS Ion Source 18 GHz Rack to provide an electrically safe work environment to facilitate removing one chassis, and moving other Rack chassis around within the same Rack.

Work Order: Ion Source Group Request

Building:

Person in Charge: Ken Lambert

Lead / Supervisor: Other

Logged Email: pbloemhard@lbl.gov

Division: Facilities

QEW Level: QEW 2

Modes of Work: Mode 0 - Electrically Safe Work Condition, Mode 1 - LOTO & Zero Voltage Verification

Second Person Requirement: Safety Watch

Second Person Identified: Erik Line, Ken Lambert

List Other Participants:

Affected Persons Notified:

Switching: Hazardous Switching

Panel / Equipment ID: V04, LA0113

System Information Review: Single Line Drawing

Control of Hazardous Energy: Simple LOTO

Equipment Condition: Properly installed, Properly maintained, All doors and covers closed and fully latched, No signs of impending failure, Not energizing equipment for the first time, or after electrical repair

List basic sequence of steps from start to finish.

- LOTO out the main feed breaker for this V04 rack at LA0113. It is labeled as 18.1 cal per sq cm so the QEW will need to suit up. Live-Dead ZVV should be performed at the main breaker inside the Klystron Rack. - Remove the front panel screws of the NIM Bin at the bottom of the rack. Pull it forward, paying attention not to damage the wiring at the back of it. - Document the cable connections at the back of the NIM Bin and label the cables. - Unplug or otherwise disconnect all NIM Bin cabling. - Remove cabling where possible, otherwise tuck it into the bottom of the rack - remove the NIM Bin. - Lower the Hot Swap I and II panels to the bottom of the rack - Pull the N2 pressure gauge panel out of the rack towards the back - Move the Power Supply for the Old Klystron up to its new location under the old Klystron. - Install the Nitrogen Pressure gauge panel into its new location - Install a blank 5.25" panel into the new Cryo Pump Controller location (leave a slight amount of wiggle room) - Move the Oscillator panel into its new location - If all of the Cryo Pump Controller cables, including power cables, are long enough to reach their new location, move them to their new location. If not, leave the controllers where they are and arrange to manufacture and/or buy new cables. - Install blank off plates into the rack where required to close off access.

Minimum Approach Boundary: 98

Barricade Tape / Attendant: Attendant

System Voltage: 120/208 V ac

Limited Approach Boundary: 10 feet

Restricted Approach Boundary: 12 inches

Will the hands enter the RAB: Yes

Voltage Glove Class: 0

Will any other part of the body enter the RAB: No

Incident Energy: 18.1 cal/cm2

Arc Flash Boundary: 98 inches

Working Distance: 18 inches

Arc Flash PPE Level: 3

Incident Energy Reduction Measures: 0

Capacitor Bus Voltage:

Capacitor total stored energy (joules):

Discharge wait time (minutes):

Does the environment present additional hazards that should be addressed?

None

Task Demands:

Work Environment:

Individual Capabilities:

Human Nature:

Error Precursor Mitigations:

N/A

Safety glasses (ANSI Z87),
Arc-rated clothing (flash suit,
daily wear) including face shield,
balaclava,
hood.,
Hearing protection,
Rubber insulating gloves and leather protectors,
Non-melting footwear that fully covers the feet,
Removal of conductive articles,
Multimeter and other electrical test instruments

PIC Conducts the Job Briefing. Cover all the contents of the Job Safety Plan.

A Job Briefing at a minimum must include:

1. Detailed Scope of Work
2. Shock and arc flash hazards for each task
3. Controls to mitigate the hazards (procedures, precautions, energy source controls, PPE requirements)
4. Work area controls (barricades, signs, attendants)
5. Emergency Response Plan

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Rev 2023.08.22.1
Form Content and Feedback Contact: Michael Rose -- mvr@lbl.gov